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so what does this do then (code revisited)

just came accross some old code of mine ... so pop quiz , what does it do , and what is wrong with it ? , eg what does it not do very well that is supposed to do ? and how hard should I beat myself for using it a)in the first place & b)without comments

You have a values seperated in a string by a blank, you replace the blank with a , take every value, throw out the double values, take thr first 10 words and put them together into a string seperated by a , and blanks.
I guess you created keywords out of some text?